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iommu/vt-d: Delete unnecessary check in domain_context_mapping_one()
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Variable did_old is unsigned so checking whether it is
greater or equal to zero is not necessary.

Signed-off-by: Christos Gkekas <chris.gekas@gmail.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Christos Gkekas authored and Joerg Roedel committed Oct 10, 2017
1 parent ec154bf commit b117e03
Showing 1 changed file with 1 addition and 1 deletion.
2 changes: 1 addition & 1 deletion drivers/iommu/intel-iommu.c
Original file line number Diff line number Diff line change
@@ -2058,7 +2058,7 @@ static int domain_context_mapping_one(struct dmar_domain *domain,
if (context_copied(context)) {
u16 did_old = context_domain_id(context);

if (did_old >= 0 && did_old < cap_ndoms(iommu->cap)) {
if (did_old < cap_ndoms(iommu->cap)) {
iommu->flush.flush_context(iommu, did_old,
(((u16)bus) << 8) | devfn,
DMA_CCMD_MASK_NOBIT,

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